Route Reliability

Route reliability

Newark (EWR) to Miami (MIA): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Newark, NJ (EWR) to Miami, FL (MIA), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Newark, NJMiami, FL

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

EWR to MIA

Newark, NJ to Miami, FL

On time
75.0%vs 75.6% U.S. average About average
Cancelled
3.0%vs 1.9% U.S. average Worse than average
60+ min late
8.5%vs 8.1% U.S. average About average
Scheduled flights
3,914in 12 months3 airlines
Most reliable airline
American Airlines78.2% on time · 1,429 flights

On time about as often as the U.S. average, with more cancellations.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from EWR to MIA, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. American Airlines Most reliable 78.2% 3.3% 7.3% 101 min 0.6% 1,429
2. United Airlines 75.1% 2.5% 8.1% 72 min 0.2% 2,238
3. Spirit Airlines Small sample (under 300 flights) 55.9% 5.3% 18.2% 76 min 0.4% 247

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

American Airlines has the strongest record on this route.

  • American Airlines had the best on-time record from Newark (EWR) to Miami (MIA): 78.2% of its 1,429 scheduled flights arrived within 15 minutes of schedule, compared with 75.1% for United Airlines.
  • 3.0% of flights on this route were cancelled (about 1 in 33), 1.1 points higher than the U.S. average of 1.9%.
  • 8.5% of flights, about 1 in 12, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 81 min.
  • Overall, 75.0% of flights on this route arrived on time, 0.6 points lower than the U.S. average of 75.6%.
  • Over the last 3 years, October was the most reliable month on this route (82.6% on time) and July the least reliable (61.8%).
  • Cancellations peaked in January, when 5.7% of flights were cancelled.
  • Flights scheduled to depart before 6 am were the most punctual (88.3% on time); flights scheduled to depart 4 pm to 5 pm were the least (56.4%).
  • In the other direction, Miami (MIA) to Newark (EWR), 69.8% of flights were on time and 2.9% were cancelled. Compare airlines MIA to EWR.

Best and worst months to fly EWR to MIA

Jan 69.2%
Feb 76.6%
Mar 74.7%
Apr 78.3%
May 73.4%
Jun 74.8%
Jul 61.8%
Aug 69.0%
Sep 74.0%
Oct 82.6%
Nov 79.1%
Dec 71.4%
Share of scheduled flights on time 12-month average 75.0%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 69.2% 1,238
February 76.6% 1,166
March 74.7% 1,227
April 78.3% 1,110
May 73.4% 970
June 74.8% 804
July 61.8% 871
August 69.0% 849
September 74.0% 885
October 82.6% 987
November 79.1% 1,084
December 71.4% 1,252
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
American Airlines October (83.2%) July (61.2%)
United Airlines October (82.1%) July (62.1%)
Spirit Airlines November (86.5%) June (51.7%)

Month by month, last 12 months

Sep 77.4%
Oct 74.6%
Nov 69.1%
Dec 71.8%
Jan 74.6%
Feb 71.8%
Mar 73.5%
Apr 81.3%
May 86.7%
Jun 84.1%
Jul 63.6%
Aug 71.9%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 77.4% 283
Oct 2025 74.6% 307
Nov 2025 69.1% 327
Dec 2025 71.8% 394
Jan 2026 74.6% 382
Feb 2026 71.8% 351
Mar 2026 73.5% 396
Apr 2026 81.3% 353
May 2026 86.7% 315
Jun 2026 84.1% 270
Jul 2026 63.6% 269
Aug 2026 71.9% 267

Best and worst departure times

<6a 88.3%
6a 88.0%
7a 84.6%
8a 81.9%
9a 71.0%
10a 78.8%
11a 79.0%
12p 74.9%
1p 72.7%
2p 58.9%
3p 70.9%
4p 56.4%
5p 74.9%
6p 64.7%
7p 70.6%
8p 63.6%
9p Insufficient sample
Share of scheduled flights on time
By scheduled local departure hour at EWR, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing before 6 am 88.3% 342
Departing 6 am to 7 am 88.0% 292
Departing 7 am to 8 am 84.6% 409
Departing 8 am to 9 am 81.9% 248
Departing 9 am to 10 am 71.0% 155
Departing 10 am to 11 am 78.8% 80
Departing 11 am to noon 79.0% 343
Departing noon to 1 pm 74.9% 366
Departing 1 pm to 2 pm 72.7% 198
Departing 2 pm to 3 pm 58.9% 202
Departing 3 pm to 4 pm 70.9% 117
Departing 4 pm to 5 pm 56.4% 156
Departing 5 pm to 6 pm 74.9% 179
Departing 6 pm to 7 pm 64.7% 425
Departing 7 pm to 8 pm 70.6% 143
Departing 8 pm to 9 pm 63.6% 250
Departing 9 pm to 10 pm Insufficient sample 9
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from Newark, NJ (EWR) to Miami, FL (MIA), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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